Mitch Ryan as Jethro Lundy Leif Garrett as Peter Lundy Bibi Besch as Emily Lundy Ann Doran as Grandma Lundy
{"Image ImageDescription": "PETER LUNDY AND THE MEDICINE HAT STALLION -- Aired 11/06/1977 -- Pictured: (Clockwise from top left) Mitch Ryan as Jethro Lundy, Leif Garrett as Peter Lundy, Bibi Besch as Emily Lundy, Ann Doran as Grandma Lundy  (Photo by NBCU Photo Bank/NBCUniversal via Getty Images via Getty Images)", "Image Copyright": "2012 NBCUniversal, Inc."}